1722500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:90

約数の個数: 60

約数和(自身を含む): 4133052

約数和(自身を除く): 2410552

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 125, 130, 212, 250, 260, 265, 325, 500, 530, 625, 650, 689, 1060, 1250, 1300, 1325, 1378, 1625, 2500, 2650, 2756, 3250, 3445, 5300, 6500, 6625, 6890, 8125, 13250, 13780, 16250, 17225, 26500, 32500, 33125, 34450, 66250, 68900, 86125, 132500, 172250, 344500, 430625, 861250, 1722500]

約数ペア:

[(1, 1722500), (2, 861250), (4, 430625), (5, 344500), (10, 172250), (13, 132500), (20, 86125), (25, 68900), (26, 66250), (50, 34450), (52, 33125), (53, 32500), (65, 26500), (100, 17225), (106, 16250), (125, 13780), (130, 13250), (212, 8125), (250, 6890), (260, 6625), (265, 6500), (325, 5300), (500, 3445), (530, 3250), (625, 2756), (650, 2650), (689, 2500), (1060, 1625), (1250, 1378), (1300, 1325)]